Improvement in frames for dikwg-sheets



JAMES s; PIERSON.

Improvement in Frames for Di king Streets.

Patented Nov- 14, Ifl.

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JAMES S. PIERSON, OF NEW YORK, N. Y.

IMPROVEMENT IN FRAMES FOR DlKlNG-SHEETS.

Specification forming part of Letters Patent No. 120,896, dated November14, 1871.

To all whom it may concern:

Be it known that 1, JAMES S. PrERsoN, of the I city of New York, in thecounty and State of New York, have invented a new and Improved Frame forBiking-Sheets; and I do hereby declare that the following is a full,clear, and exact description thereof, which will enable others skilledin the art to make and use the same, reference being had to theaccompanying drawing forming part of this specification.

Figure l is a side view of a diking-sheet to which my improved frame hasbeen attached. Fig. 2 is an edge view of the same. Fig. 3 is a top viewof the same.

Similar letters of reference indicate correspon ding parts.

My invention has for its object to furnish an improved frame fordikingYsheets, which will enable them to be handled, transported andplaced or driven without danger of breakage, thus removing one greatsource of expense in using diking-sheets; and it consists in the frame,constructed as hereinafter more fully described.

A represents a dikingsheet, which may be made of metal, cement, or othersuitable material or combination of materials. These sheets are designedto be driven into the ground where the dike is to be formed, and shouldextend from about six inches below the low-water line to about sixinches above the high-water line, to prevent rats, crawfish, &c., fromworking through the dike.

As heretofore made, many of the sheets, even when made of metal, arebroken in the operation of driving, and very many, especially when madeof composition, are broken byhandling and transportation, thus entailinggreat loss. To prevent this loss I propose to put a frame upon thesheets. B is the bottom bar of the frame, which I prefer to makewedge-shaped upon its lower edge, as shown in Figs. 1 and 2, so that itmay more readily be forced into the ground. 0 is the top bar of theframe, which rests upon the top edge of the sheet A, and should besufficiently strong and heavy to allow the sheet to be driven with outbeing broken. D are the side bars of the frame, which cover the sides ofthe edges of the sheets A, and the ends of which are attached to theopposite sides of the ends of the top and bottom bars 0 B, so that theedges of the sheet A may be flush with the outer edges of the side barD. This construction allows the adjacent edges of the sheets A, whenarranged in place, to be in contact with each other, so that there maybe no space between the sheets when the frames may decay or be removed.The frames B G D may be made of wood or metal, and may be permanentlyattached to the sheets A. Or, if desired, said frames may be so made andattached to said sheets that they may be detached and removed, in wholeor in part, after the sheets have been driven to their places.

Having thus described my invention, I claim as new and desire to secureby Letters Patent A frame, B (J D, made of wood or metal, andpermanently or detachably attached to a dikingsheet, A, substantially asherein shown and de scribed, and for the purposes set forth.

The above specification of my invention signed by me this 25th day ofAugust, 1871.

JAMES S. PIERSON. Witnesses:

JAMES T. GRAHAM, T. B. MOSHER.

